// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System.Collections.Immutable;
using System.Composition;
using System.Linq;
using System.Threading.Tasks;
using ILLink.CodeFixProvider;
using ILLink.RoslynAnalyzer;
using ILLink.Shared;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.Editing;

namespace ILLink.CodeFix
{
    [ExportCodeFixProvider(LanguageNames.CSharp, Name = nameof(RequiresUnreferencedCodeCodeFixProvider)), Shared]
    public sealed class RequiresUnreferencedCodeCodeFixProvider : BaseAttributeCodeFixProvider
    {
        public static ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(DiagnosticDescriptors.GetDiagnosticDescriptor(DiagnosticId.RequiresUnreferencedCode));

        public sealed override ImmutableArray<string> FixableDiagnosticIds => SupportedDiagnostics.Select(dd => dd.Id).ToImmutableArray();

        private protected override LocalizableString CodeFixTitle => new LocalizableResourceString(nameof(Resources.RequiresUnreferencedCodeCodeFixTitle), Resources.ResourceManager, typeof(Resources));

        private protected override string FullyQualifiedAttributeName => RequiresUnreferencedCodeAnalyzer.FullyQualifiedRequiresUnreferencedCodeAttribute;

        private protected override AttributeableParentTargets AttributableParentTargets => AttributeableParentTargets.MethodOrConstructor | AttributeableParentTargets.Class;

        public sealed override Task RegisterCodeFixesAsync(CodeFixContext context) => BaseRegisterCodeFixesAsync(context);

        protected override SyntaxNode[] GetAttributeArguments(ISymbol? attributableSymbol, ISymbol targetSymbol, SyntaxGenerator syntaxGenerator, Diagnostic diagnostic) =>
            RequiresHelpers.GetAttributeArgumentsForRequires(targetSymbol, syntaxGenerator, HasPublicAccessibility(attributableSymbol));
    }
}
